英语提问请给出答案并给出理由!
1)__myhusbandandi__downtheroadyesterdayevening,weheardawomanscream.
A)since;hadwalkedB)while;havewalkedC)as;werewalkingD)when;arewalking
2)pierreleftwithoutsayingawordtothebossbecausehecannotstand__towait.
A)bemadeB)tobemadeC)beingmadeD)bemaking
3)fionasaidthatshefeltquiteembrassedthatdaybecauseshewasnotaccustomedto__likethat.
A)betreatingB)havebeentreatedC)beingtreatedd)betreated
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